Sylvania 5Y4 5Y4G Vacuum Tube Black Plate Rectifier Shoulder ST-Shape Colors Of The Day new in box milspec RCA

new in box milspec RCA JAN-CRC-12SW7 tubes tested to spec on our Paul Hart-calibrated TV7/U

There are a few glass fragments inside the bottle

There were no shorts or gas and they measured 44 and 46 where minimum (65%) is 31

a fence-like strip on top of the top spacer and dimpled sheet getters

These tubes have engraved bottles

Sylvania 5Y4 5Y4G Vacuum Tube Black Plate Rectifier Shoulder ST-Shape Colors Of The Day new in box milspec RCAThis Sylvania 5Y4G rectifier tube tested 62 54 where minimum (65%) is 40 40 and 100% is 62 62. It has the nostalgic shoulder Coke bottle glass envelope; a round, top mica spacer with wire snubbers; a bottom, dimpled sheet getter; nice flashing and lightly ribbed, black plates. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU